^O Sixth Supplement to the A. O. U. Check-List. V\™. 



Corvus americamis caurinus (Bd.) vs. Corvus caurinus Bd. 

 {Cf Rhoads, Auk, X, Jan. 1893, 1S-21.) 



The proposed change was not considered expedient, the 

 case being deemed not well enough understood to warrant any 

 change. 



Melospiza lincolni (Aud.) vs. Melospiza lincolni striata 

 Brewst. {Cf. Rhoads, Auk, X, Jan. 1S93, 21 ; Proc. Acad. 

 Nat. Sci. Phila. 1S93, 51.) 



The proposed change was not adopted, M. I. striata being 

 considered as entitled to recognition as a local northwest-coast 

 form. 



Vireo gilvus sivainsoni (Bd.) vs. Vireo gilv7is {Vieill.). 

 {Cf Rhoads, Auk, X, Jan. 1S93, 21 ; Proc. Acad. Nat. Sci. 

 Phila. 1893, 53.) _ 



The type of Vireo sivainsoni Bd. came from Petaluma, Cali- 

 fornia, instead of from Steilacoom, Washington, as represented 

 (1. c). Furthermore, in view of the instability of the Vireo 

 gilvus group as represented in different parts of North America, 

 and the tendency to development of slightly differentiated local 

 forms, it was deemed unnecessary to recognize any of them in 

 nomenclature. 



Sylvania pusilla (Wils.) vs. Sylvania pusilla pileolata 

 (Pall.). "" {Cf Rhoads, Auk, X, Jan. 1S93, 23; Proc. Acad. 

 Nat. Sci. Phila. 1893, 55.) 



The proposed change was not considered necessary, the 

 material submitted to the Committee showing that true Sylva?iia 

 pusilla is found in Vancouver Island. 



V. ACTION DEFERRED. 



Final action on the following was deferred. 



Leptoptila brachyptera (Salvadori ex Gray) vs. Engvp- 

 tila albifrons (Bonap.). {Cf. Salvadori, Cat. Birds Brit.. 

 Mus. XXI, 1893,545.) 



Owing to complications of synonymatic and other questions 

 involved, final decision was deferred. 



